Ozone integration.

ui/ozone/platform/drm/gpu/drm_vsync_provider.h

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef UI_OZONE_PLATFORM_IMPL_DRM_VSYNC_PROVIDER_H_
+#define UI_OZONE_PLATFORM_IMPL_DRM_VSYNC_PROVIDER_H_
+
+#include "ui/gfx/vsync_provider.h"
+
+namespace ui {
+
+class DrmWindow;
+
+class DrmVSyncProvider : public gfx::VSyncProvider {
+ public:
+  DrmVSyncProvider(DrmWindow* window_delegate);
+  ~DrmVSyncProvider() override;
+
+  void GetVSyncParameters(const UpdateVSyncCallback& callback) override;
+
+ private:
+  DrmWindow* window_delegate_;  // Not owned.
+
+  DISALLOW_COPY_AND_ASSIGN(DrmVSyncProvider);
+};
+
+}  // namespace ui
+
+#endif  // UI_OZONE_PLATFORM_IMPL_DRM_VSYNC_PROVIDER_H_